Tractor.



J. N. PARKER-v TRACTOR.

APPLICATION FILED MAR. 26. 1918.

3 SHEETS-SHEET 1.

gmntoz J. N. PARKER.

TRACTOR.

APPLICATION FILED MAR. 26. 1918. ll wfi wgm Patented Dec. 3, 1918.

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1. N. PARKER.

TRACTOR. I APPLICATION FILED MAR. 26. 19H};

- Patented Dec. 3, 1918.

3 SHEETS-$HEET 3.

I attozmq a arena? ohm:

TWIACTOJEI.

specification o1 Letters-Patent.

Patented Dec. 3, Mild.

application filed March $611918. Serial No. 224,871.

. om concern: C

' lrnoivn that l, dosrirnz N. Penman, 1e United States, residing -at "the following is a specification.

My invention relates to improvements in tractors. An. important ob ect oi the invention is to a tractor, Whichis so constructed that the same is adapted to conform to the irregularities in the road-bed. over which the same is traveling. v

A. "further object of the invention is to provide a tractor of the above mentioned character, having oscillatory side frame-- members, which carry traction wheels at the opposite ends thereof, together with means to independently drive, in nnisomthe wheels carried hyeach side frame-member, the side frame-members swinging about the (li'lVG shafts of the driving means.

' ihiarther object of the invention is to provide a tractor of the above mentioned character formed of few and simple parts.

A further ob ect of, the invention is to provide means whereby one side frame-memher is pivctally connected with the body portion of the tractor, in an eccentric manner, and adapted to be swung to an inverted position, to assume a position above the enacting side frame-member, whereby the tractor is adapted to travel uporra hill-side.

(Ether obiects and advantages of the in vention will be apparent during the course of the following description.

in the accompanying drawings'forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a plan view of a tractor emying my invention,

Fig. 2 is a side elevation of the same, F 1g. 3 IS a forward end elevation of the tractor,

l 'ig. 8 is a longitudinal sectional view taken on line 8-8 of fig. 1, and,

Fig. 9 is a transvcr; .r-ctional view taken on. line of Fig.3.

In the drawings, wlwreils. for the purpose of illustration shown a preferred embodiment of my invention, the numeral 10 dcsig nates an internai combustion engine of any Welllrnown or preterred type. ltigidly secured to the rear end of the engine 10 is a gear case 11, having compartments 12,

as shown more clearly in Fig. The engine 10 and gear case 11 constitute the spine or body portion of the tractor. w

Asmore clearly shown in Figs. 1 and 5, the numeral 13 designates tubular trunnions or shafts, preferabl formed integral withthe gear case 11. he tubular trunnions 13 extend transversely of the tractor and are arranged 'at a right angle to the gear case ll, as shown.

Arranged upon opposite sides oi the gear case 11 are side frame-members l4, includ ing a transverse portion 15, carrying longitadinal arms 16, which taper toward the free ends thereof, as shown. The side frame members I l are preferably made of hollow castings, whereby the same are sniiiciently strong and light, While the invention is in no sense restricted to this precise construction. The transverse portions 15 of the frame-members 14; have transverse cylindrical openingsfl'? formed therein. pivotally receiving trunnions 13. Any suitable means may be employed to prevent the longitudinal displacement of the frame men'lbcrs l tupon the trunnions 13.

At its forward end the engine 10 is provided with a block or casting 18. preferably formed integral therewith. This block or casting has an opening for the extension of the crank-shaft 19, shown. Disposed beneath the casting 18 is a transverse leaf spring. 20; which is clamped or bound to the casting 18 by U-bolts 21, as shown. At each end, as more clearly shown in Figs. 6 and 7, the leaf spring 18 has one leaf bent to provide an eye 22, surrounding a bolt 23. The eye22 is ar-. ranged within a pair of spaced links 24,

aperturecl for the passage of the bolt 23.

ably cast integral, with the side framemember. lit-is thus apparent that the forseen that thei'i'eme-members are normally pivoted to the gear case 11 beneath the cen tral longitudinal axis of the gear case. .l/Vnen one frame-member 14 is turned tor one-hslfof arevolution so that itis invert'ed, it is obvious that the same will he s lifted to an elevated position With respect to the other frame-member 14, whereby the corresponding traction wheels (to be de scribed) will be elevatedabove the other traction wheels (to be described) and the tractor particularly well adapted to travel upon a hill-side. lin order that 'the framenieniher 14 may m thus inverted, the bolt 26 is removed whereby the links 24 are disconnected from the casting 25. The frame member is theninverted, for instance by swinging the same to the right in Fig. 1.

At the rear end of the frame-member is an I attaching member or casnng 27, preferably.

formed integral therewith. This attaching 'member,- when the frame-member is in the normal position as shown in Fig. l, projects 11 Wardly as shown in Figs. 8 and 9, but when the frame-member is inverted it eirtends downwardly to occupy a position corresponding to the block 25, in Fig. 10. The links 24 are disposed u on opposite sides of the attaching member 2 and the bolt 26 employed to connect the forward end of the spring 20 with the attaching member 2'1. I'. prefer to equip each frame-member 14: with an attaching member 27, so that each framemember may be inverted, as desired.

Rigidly secured to the opposite ends of the frame-members 14 are aides 28, pivotally receiving thereon, traction Wheels 29 of any well known or preferred construction. These traction Wheels have connection with sprocket Wheels 30, which drive the same. The sprocket wheels 30 are engaged and driven by sprocket chains, 31, extending inwardly to engage with smaller sprocket wheels 32, which are rigidly attached to drive shafts The drive shafts 33 are independently rotateble and are equipped at their inner ends with bevel gears 84:, rigidly secured thereto. These bevel gears are dis posed within the compartments 12 and are adapted to be operated by separate speedchanging and reversetransmission gearing (not shown) of any well known or preferred messes type. This gearing is of course d'rivcn by or from the engine 10. It 18 thus apparent that each pair of traction Wheels carried by cecb.

fra1ne-member is driven by one drive shaft 33 and the traction wheels in each pair are thereby driven in unison.

The drew-bar (not shown) is preferably connected with an attaching element rigidly secured to the rear end or the gear case 11. l

4 The operation of the tractor is as follows:

The. transmission gearings (not shown) operating Within the compartments 1:2 may be adjusted to drive the bevel goers M and their shafts 33 in the same dirwtion a" the same speed, whereby the traction will be rotated and the tr travel forwardly in a straight put steering of the tractor is effected by lug one transmission gearing so that i ates to drive the corresponding slower than the other shaft thoi ing the tractor to travel laterally around. I also contemplate adi transmission gearing to cause cl same to operate in reverse, thereby causing one set of traction wheels to travel in opposite di rections with respect to the other which ivouid effect a quicker turning around oi the tractor. It is obvious that the. tractors may be caused to move rearwardly, by adjusting each set of transmission gearing'to reverse; is to be understood that tlie forxu oi my invention herewith shown and desc.:ri"--i is to be taken as a preferred example 0:? '1 same, and that various changes "in the Sl'litl'ltk sine end arrangement of pa is may be resorted to without departing from the spirit. of the inventionor the scope of the subjoined claims.

lfisving thus described my invention, I claim:

1. tractor of the character descrilu-d comprising an engine and gear case which constitute the body portion of the tractor. tubular trunnions secured to the opposite sides 01": the gear cese, side frame-n1embers pivotally mounted upon the tubular trunnions, at points dispo scd between the ends of" the side frame-member, a pair of traction Ill] meet-mo int; and. rigidly secured theteto and extending transversely thereof, side frame'inein iliil'rj plVOtttllIY mounted between their ends upon the tubular trunnions, a pair of traction wheels connected with the opposite ends 01 each side iliame-ineinber, a pair of drive shatts rotatable within the tubular trunnions, driving connecting means between the outer end of each drive shaft and the corresponding pair of traction Wheels and adapted to drive the traction Wheels in each pair in unison, and separate means to rotate the drive shafts,

3. A. tractor of the character described,

tralne inember drivin connectin means between each drive shaft and the corresponding pair of traction wheels, and a spring connected with one end or the body portion and having connection with corresponding ends of the side frame-members.

4-. A. tractor of the character described, t'lllllpl'. mg a body portion, trunnions connectcd with the body portion and extending transversely upon the opposite s des there- .ot. side finine-inoinbers pivotally mounted" upon the trunnions, traction wheels connected. with the end portions of the side frainc-members, means connected with the body portion to drive the traction wheels, and a transverse spring connected. with one end portion of the body portion and connected with corresponding end portions of she side frame-members.

A tractor of the character described, comprising 1: body portion provided upon its opposite sides with tt'unnions, side fI'fUllElmembers provided between their ends with openings which are disposed eccentric with relation to the longitudinal axes of the frame-members and adaptedfor pivotally receiving said'trunnions, whereby the framemembers are adapted to be swung to inverted positions in an'elevated plane, traction wheels carried by the end portions of the side framemeinbers, and means to drive the traction wheels.

6. A tractor of the character described, comprising a body portion provided upon its opposite sides with trunnions, side framemembers provided between their ends with openings with the opening in one framemember being disposed eccentric with respect to the longitudinal axis thereof wliercby such trameqneinber is adapted to be swung to an inverted position in an elevated plane, traction wheels carried by the end portions of, the side frame-1ne1nbers, and means to drive the traction wheels.

7. A tractor of the character described,'

comprising a body portion provided upon its opposite sides with trunnions, side framemembers provided betweeintheu' ends with openings with the opening in one framemember being disposed eccentric with respect to the longitudinal axis thereof, said openings being adapted for thereception ot the trunnions, traction Wheels carried by the end portions of the side franie'nieinbers, a

spring having one end thereof connected with one end of one side framesneinber,

means for alternately connecting; the opposite end of the spring with the opposite ends of the other side frame-member, and means to drive the traction wheels.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH NICHOLAS PARKER.

Witnesses FRANK S. Vi ING, i J. PARKER.

Copies of'this patent may be obtaincdfor five cents each, by addressing the "Commissioner of Patents. Washington, 1D. (27 v 

